Dexter's Apartment

The interior of Dexter apartments, where he keeps the blood-sample trophys, is actually built inside a studio in L.A, but the exteriors we can see in the episodes are filmed in two different places. The first episodes where shot in Miami, so the original one is there and it’s a private condo. After that, the producers decided to build a replica in L.A, imitating the views you’d have if you where in Miami.
Dexter lives in 10b, second floor ;)